T-CLAP: Temporal-Enhanced Contrastive Language-Audio Pretraining

• URL: http://arxiv.org/abs/2404.17806v1
• Date: Sat, 27 Apr 2024 07:05:48 GMT
• Title: T-CLAP: Temporal-Enhanced Contrastive Language-Audio Pretraining
• Authors: Yi Yuan, Zhuo Chen, Xubo Liu, Haohe Liu, Xuenan Xu, Dongya Jia, Yuanzhe Chen, Mark D. Plumbley, Wenwu Wang,
• Abstract summary: Contrastive language-audio pretraining(CLAP) has been developed to align the representations of audio and language. We introduce T-CLAP, a temporal-enhanced CLAP model, to capture temporal information within audio and text features. T-CLAP shows improved capability in capturing the temporal relationship of sound events and outperforms state-of-the-art models by a significant margin.
• Score: 38.604112878493396
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Contrastive language-audio pretraining~(CLAP) has been developed to align the representations of audio and language, achieving remarkable performance in retrieval and classification tasks. However, current CLAP struggles to capture temporal information within audio and text features, presenting substantial limitations for tasks such as audio retrieval and generation. To address this gap, we introduce T-CLAP, a temporal-enhanced CLAP model. We use Large Language Models~(LLMs) and mixed-up strategies to generate temporal-contrastive captions for audio clips from extensive audio-text datasets. Subsequently, a new temporal-focused contrastive loss is designed to fine-tune the CLAP model by incorporating these synthetic data. We conduct comprehensive experiments and analysis in multiple downstream tasks. T-CLAP shows improved capability in capturing the temporal relationship of sound events and outperforms state-of-the-art models by a significant margin.

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